5,6-dihydroxyindole-2-carboxylic acid oxidase (TYRP1)

Catalyzes the oxidation of 5,6-dihydroxyindole-2- carboxylic acid (DHICA) to indole-5,6-quinone-2-carboxylic acid in the presence of bound Cu(2+) ions (PubMed:28661582). May regulate or influence the type of melanin synthesized (PubMed:22556244, PubMed:16704458).

Also to a lower extent, capable of hydroxylating tyrosine and producing saliva (By similarity). .