Nanshe's birth is described in the Sumerian myth 'Enki and Ninhursag.' In the tale, Enki consumes several forbidden plants under the protection of his wife. In retaliation, Ninhursag places a curse on him. Enki soon becomes crippled with ailments, and the gods are left helpless. Enlil, the powerful sky god, manages to ease Ninhursag's anger after sending a fox, a sacred animal of Ninhursag, to speak with her. She then returns to Enki's side and lifts the curse. To heal Enki, Ninhursag gives birth to several healing gods. Nanshe was meant to heal her father's neck. At the conclusion of the myth, she is betrothed to the god Nindara.
Nanshe's father, Enki, was later tasked with organizing the world and assigning every god a function. Nanshe was assigned dominion over the Persian Gulf, on which floated her father's awe inspiring sea shrine. As a secondary function, she was to ensure that shipments of fish reached the mainland. When heading onto the mainland, she sailed by barge from the Gulf. She had a strong connection with wildlife, especially birds and bats. In one hymn, she converses with ravens and pelicans, among other species.
During the time of Gudea, many hymns to Nanshe appeared showing her in an elevated position in the pantheon. She was the widely worshiped goddess of social justice. She nurtured orphans, provided for widows, gave advice to those in debt, and took in refugees from war torn areas. Several other gods appeared to be under the command of Nanshe. Hendursag and Haia were her assistants. Nisaba, sometimes portrayed as Nanshe's sister, was her chief scribe. On the first day of the new year, a festival was held at her temple. People came from all over the land to seek her wisdom and aid. Visitors were cleansed in the river of ordeals and then, if worthy, given an audience with the goddess. Nanshe settled disputes and handled court cases amongst mortals. Holding a higher ranking in the pantheon during this era, Nanshe sometimes shared the same tasks as Utu, the traditional god of justice. She sat on the holy thrones with the other prominent gods, and was seen as a goddess of protection. At one point, Ninurta, the mighty god of war, turns to her for guidance.
The Goddess of Prophecy
Nanshe had the ability to give oracular messages and determine the future through dream interpretation. Her priests were also granted these abilities after conducting a ritual that represented death and resurrection. Despite the ritual, Nanshe is not depicted as life-death-rebirth deity in any known hymns or myths.
The Guarantor of Boundaries - The Lady of the Storerooms
In the Nanše Hymn she is described as having a role seeing that weights and measures are correct.
223-231: The guarantor of boundaries, the expert in righteous words, lady, wise woman who founded Lagac... with Jatumdug.... righteous words for Nance. The exalted lady whose commands are... the lady who like Enlil determines fates, who is seated on the throne of Sirara -- she, the pure one, looks at her powers. 232-240: At the house which has been granted powers from the abzu, in Sirara, the gods of Lagac gather around her. To weigh silver with standard weights, to standardise the size of reed baskets, they establish an agreed ' measure throughout the countries. The shepherd, the expert of the Land, the wise one of the countries, Ictaran, who decides lawsuits justly, who lives in the Land... Ninjiczida... 241-250: To weigh silver with standard weights, to standardise the size of reed baskets, they establish an agreed ban measure throughout the countries.... of all the great rites. After... in the established storerooms, the lady of the storerooms'''... her lofty... with vessels with ever-flowing water and with ... of reed containers which never become empty, she ordered her herald, lord Hendursaja to make them profitable.
Other functions
The Nanše Hymn attributes to Nanshe, in her role as a protective goddess, special concern for vulnerable members of society:
20-31 She is concerned for the orphan and concerned for the widow. She does not forget the man who helps others, she is a mother for the orphan; Nance, a carer for the widow, who always finds advice for the debt-slave; the lady who gives protection for refugees. She seeks out a place for the weak. She swells his collecting basket for him; she makes his collecting vessel profitable for him. For the righteous maiden who has taken her path, Nance chooses a young man of means. Nance raises a secure house like a roof over the widow who could not remarry.
She is also -- perhaps due to her role as Lady of the Storeroom and its associated aspects of fertility and bounty -- associated with beer mash, yeast, and honey:
10-19 She is beer mash, the mother is yeast, Nance is the cause of great things: her presence makes the storehouses of the land bulge and makes the honey... like resin in the storerooms. Because of her, there stand vessels with ever-flowing water; because of Nance, the baskets containing the treasures of the Land cover the ground like the silt of the river. She is the lady of... 2 lines unclear
Symbols
Nanshe has two major symbols, both of which are also seen in Christian folklore. The fish represents her original role as a water and fishing goddess. The pelican, said in folklore to rip open its own chest to feed its young, represents her role as a protector and caregiver.