Ngeshtin-ana is a minor goddess in Sumerian mythology, the so-called "heavenly grape-vine". The sister of Dumuzi and consort of Ningisida, she is involved in the account of Dumuzi trying to escape his fate at the hands of Inana and Ereshkigal

Ereshkigal

In Mesopotamian mythology, Ereshkigal was the goddess of Irkalla, the land of the dead or underworld. Sometimes her name is given as Irkalla, similar to the way the name Hades was used in Greek mythology for both the underworld and its ruler.Ereshkigal was the only one who could pass judgment and...

. In her house he is changed into a gazelle before being caught and transported to the underworld.

In sumerian mythology:

• She is the daughter of Enki
  Enki
  Enki is a god in Sumerian mythology, later known as Ea in Akkadian and Babylonian mythology. He was originally patron god of the city of Eridu, but later the influence of his cult spread throughout Mesopotamia and to the Canaanites, Hittites and Hurrians...
  
   and Ninhursag
  Ninhursag
  In Sumerian mythology, Ninhursag or Ninkharsag was the earth and mother goddess, one of the seven great deities of Sumer. She is principally a fertility goddess. Temple hymn sources identify her as the 'true and great lady of heaven' and kings of Sumer were 'nourished by Ninhursag's milk'...
  
  .
• When Dumuzi died, Geshtinanna lamentated days and nights.
• After her death, she became the goddess of wine
  Wine
  Wine is an alcoholic beverage, made of fermented fruit juice, usually from grapes. The natural chemical balance of grapes lets them ferment without the addition of sugars, acids, enzymes, or other nutrients. Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast...
  
  and cold seasons. She is a divine poet and interpreter of dreams.