Automated description from the Alliance of Genome Resources (Release 7.0.0)
Enables protein-macromolecule adaptor activity. Involved in fusion of sperm to egg plasma membrane involved in single fertilization; maintenance of protein localization in endoplasmic reticulum; and sperm-egg recognition. Located in endoplasmic reticulum membrane. Orthologous to human FREY1 (Frey regulator of sperm-oocyte fusion 1).