Leukocyte immunoglobulin-like receptor subfamily B member 3A (Lilrb3a)

May act as receptor for class I MHC antigens. Becomes triggered coligation with immune receptors, such as FCGR2B and the B-cell receptor.

Down-regulates antigen-induced B-cell activation by recruitment phosphatases to its immunoreceptor tyrosine-based inhibitor motifs (ITIM). .