The function of Ensembl gene identifier ENSG00000271271 (UGT2A2, UDP glucuronosyltransferase family 2 member A2) is as follows. UDP-glucuronosyltransferase (UGT) that catalyzes phase II biotransformation reactions in which lipophilic substrates are conjugated with glucuronic acid to increase the metabolite's water solubility, thereby facilitating excretion into either the urine or bile (PubMed:18719240, PubMed:19858781, PubMed:23288867, PubMed:23756265). Essential for the elimination and detoxification of drugs, xenobiotics and endogenous compounds (PubMed:19858781, PubMed:23756265). Catalyzes the glucuronidation of endogenous estrogen hormone estradiol (PubMed:18719240, PubMed:23288867). Contributes to bile acid (BA) detoxification by catalyzing the glucuronidation of BA substrates, which are natural detergents for dietary lipids absorption (PubMed:23756265). Shows a potential role in detoxification of toxic waste compounds in the amniotic fluid before birth, and air-born chemical after birth (PubMed:19858781). {ECO:0000269|PubMed:18719240, ECO:0000269|PubMed:19858781, ECO:0000269|PubMed:23288867, ECO:0000269|PubMed:23756265}.