GPI-80 is an alias for the gene, Vanin 2, in humans. Other names include: Vascular non-inflammatory molecule 2; Protein FOAP-4; Vanin-2; FOAP-4. The encoded protein is an enzyme with an amino acid length of 520 and a mass of 58.5 kDa. GPI-80 is a member of the Carbon-nitrogen hydrolase superfamily, BTD/VNN family. This gene shares homology with other species, including: Frog.