Metalloreductase STEAP4 (STEAP4)

Metalloreductase that has the capacity to reduce both Fe(3+) to Fe(2+) and Cu(2+) to Cu(1+) (By similarity). Uses NADP(+) as acceptor (By similarity).

Plays a role in systemic metabolic homeostasis, including inflammatory and metabolic reactions (By similarity). Associated with obesity and insulin- resistance (PubMed:18430367, PubMed:18381574).