The protein encoded by this gene belongs to the family of P-type cation transport ATPases, and to the subfamily of aminophospholipid-transporting ATPases. The aminophospholipid translocases transport phosphatidylserine and phosphatidylethanolamine from one side of a bilayer to another. This gene encodes the member 3 of the phospholipid-transporting ATPase 8B.
Harris MJ, Arias IM (July 2003). "FIC1, a P-type ATPase linked to cholestatic liver disease, has homologues (ATP8B2 and ATP8B3) expressed throughout the body". Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids. 1633 (2): 127–31. doi:10.1016/S1388-1981(03)00107-0. PMID12880872.