Predicted to enable signaling receptor binding activity. Involved in negative regulation of activated T cell proliferation and negative regulation of cytokine production. Predicted to be located in membrane. Predicted to be integral component of membrane. Predicted to be active in external side of plasma membrane. Is expressed in genitourinary system and heart valve. Orthologous to human BTN1A1 (butyrophilin subfamily 1 member A1). [provided by Alliance of Genome Resources, Apr 2022]