CD312 is an alias for the gene, Adhesion G protein-coupled receptor E2, in humans. Other names include: EGF-like module receptor 2; EGF-like module-containing mucin-like hormone receptor-like 2; CD antigen CD312; EMR2; egf-like module containing, mucin-like, hormone receptor-like 2. The encoded protein has an amino acid length of 823 and a mass of 90.5 kDa. Other isoforms may exist. CD312 is a member of the G-protein coupled receptor 2 family, Adhesion G-protein coupled receptor (ADGR) subfamily. This gene shares homology with other species, including: Fly.