UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. Acts on small phenolic agents such as 2-beta-naphthol and 4-methylumbelliferone as well as bulky phenolic compounds like 2-hydroxy- and 4-hydroxybiphenyl. In contrast to 2B13 it is active toward 4-hydroxyesterone. glucuronate acceptor + UDP-alpha-D-glucuronate = acceptor beta-D-glucuronoside + H(+) + UDP Expressed primarily in adult rabbits. Belongs to the UDP-glycosyltransferase family.