Anti-H963 antibodies enable researchers to detect and measure the H963 antigen in biological samples. This target is a reported synonym of the GPR171 gene, which encodes G protein-coupled receptor 171. This protein is known to function in GPCR signaling pathways and the regulation of cell differentiation, among other biological roles. The human version of H963 has a canonical amino acid length of 319 residues and a protein mass of 36.8 kilodaltons. It is reported to be localized in the cell membrane of cells and notably expressed in the spleen, skin, lymph node, lung, and bone marrow. H963 is a member of the G-protein coupled receptor 1 protein family.