Encoded by UGT1 complex which encodes human bilirubin, phenol, and other UDP-glucuronosyltransferase isozymes with identical carboxyl termini; RefSeq NM_000463 (human).

Catalyzes bile acid glucuronidation at high rates exclusively at the carboxyl moiety.

Conjugates one or two glucuronic acid molecules to the carboxyl groups of the propionate side chains of bilirubin thereby removing free bilirubin from the body; UGT1.4 is the minor human bilirubin UDP-glucuronosyltransferase (UGT).

RefSeq NM_205862.

Induced by 3-methylcholanthene in rat hepatoma cells.

A nucleoside diphosphate sugar which serves as a source of N-acetylgalactosamine for glycoproteins, sulfatides and cerebrosides.

The decarboxylation product of UDPglucuronic acid, which is used for formation of the xylosides of seryl hydroxyl groups in mucoprotein synthesis. Also forms plant xylans.