Predicted to enable signaling receptor binding activity. Predicted to be involved in T cell receptor signaling pathway and regulation of cytokine production. Predicted to be integral component of membrane. Predicted to be active in external side of plasma membrane. Orthologous to human BTNL3 (butyrophilin like 3); BTNL8 (butyrophilin like 8); and BTN3A3 (butyrophilin subfamily 3 member A3). [provided by Alliance of Genome Resources, Apr 2022]