Predicted to enable several functions, including MHC class I protein binding activity; MHC class Ib receptor activity; and identical protein binding activity. Involved in positive regulation of apoptotic process; positive regulation of myeloid dendritic cell activation; and positive regulation of natural killer cell mediated cytotoxicity directed against tumor cell target. Located in cell surface. Used to study histiocytoma. Human ortholog(s) of this gene implicated in tropical spastic paraparesis. Orthologous to several human genes including KLRC4-KLRK1 (KLRC4-KLRK1 readthrough). [provided by Alliance of Genome Resources, Apr 2022]