Ms4a1 - membrane-spanning 4-domains, subfamily A, member 1

Predicted to enable epidermal growth factor receptor binding activity; identical protein binding activity; and immunoglobulin binding activity. Involved in calcium ion import into cytosol. Acts upstream of or within response to bacterium. Located in external side of plasma membrane. Is expressed in several structures, including alimentary system; brain; hemolymphoid system gland; liver and biliary system; and reproductive system. Human ortholog(s) of this gene implicated in common variable immunodeficiency. Orthologous to human MS4A1 (membrane spanning 4-domains A1). [provided by Alliance of Genome Resources, Apr 2022]