The function of DCT (dopachrome tautomerase, Ensembl gene identifier ENSG00000080166) is as follows. Plays a role in melanin biosynthesis (PubMed:33100333). Catalyzes the conversion of L-dopachrome into 5,6-dihydroxyindole-2- carboxylic acid (DHICA). {ECO:0000269|PubMed:33100333, ECO:0000269|PubMed:8306979}.