The function of ENSG00000181333 (HEPHL1, hephaestin like 1) is as follows. Is a copper-binding glycoprotein with ferroxidase activity. It oxidizes Fe(2+) to Fe(3+) without releasing radical oxygen species (PubMed:31125343). May be involved in the regulation of intracellular iron content (PubMed:31125343). .