This enzyme belongs to the family of oxidoreductases, to be specific those acting on the CH-CH group of donor with oxygen as acceptor. This enzyme participates in porphyrin and chlorophyll metabolism.

Pyrophosphatase (or inorganic pyrophosphatase) is an enzyme (EC 3.6.1.1) that catalyzes the conversion of one molecule of pyrophosphate to two phosphate ions. This is a highly exergonic reaction.

Tyrosinase (TYR) is the key enzyme regulating melanin production in hair and skin in humans. Although melanin displays maximal optical absorption at ultraviolet wavelengths, melanin has a broad spectrum of optical absorption with significant absorpti