This gene encodes a member of the immunoglobulin receptor gene family involved in the microbial immune response. The protein localizes to the cell surface, where it functions as a receptor for IgM and IgA antibodies. The mouse homolog of this protein can bind and internalize IgM-coated particles, and mediates endocytosis of IgM-coated Staphylococcus by primary B lymphocytes. Alternatively spliced transcript variants have been described, but their biological validity has not been determined.
Fc alpha/mu receptor,immunity related factor,receptor for Fc fragment of IgA and IgM