GPCR6, or G protein-coupled receptor 101, is a human gene encoded by GPR101. It may also be known as: Probable G-protein coupled receptor 101; PAGH2. The encoded protein has an amino acid length of 508 and a mass of 56.7 kDa. GPCR6 is a member of the G-protein coupled receptor 1 family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog.