Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables copper ion binding activity. Involved in acrosome reaction. Acts upstream of or within intracellular copper ion homeostasis. Located in external side of plasma membrane. Is expressed in several structures, including gut; heart; nervous system; retina blood vessel; and testis. Orthologous to human PRND (prion like protein doppel).