Plays a role in melanin biosynthesis . Catalyzes the conversion of L-dopachrome into 5,6-dihydroxyindole-2-carboxylic acid (DHICA).
Subcellular locations: Melanosome membrane, Melanosome
Proper trafficking to melanosome is regulated by SGSM2, ANKRD27, RAB9A, RAB32 and RAB38.