Enables several functions, including MHC class I protein binding activity; MHC class Ib receptor activity; and identical protein binding activity. Involved in positive regulation of natural killer cell mediated cytotoxicity. Acts upstream of or within several processes, including positive regulation of biosynthetic process; response to bacterium; and stimulatory C-type lectin receptor signaling pathway. Located in external side of plasma membrane. Human ortholog(s) of this gene implicated in HTLV-1-associated myelopathy/tropical spastic paraparesis. Orthologous to several human genes including KLRK1 (killer cell lectin like receptor K1).
