Enables signaling receptor activity. Predicted to be involved in regulation of neuroinflammatory response. Located in external side of plasma membrane. Is expressed in ductus deferens; epididymis; ileum; and tongue. Orthologous to human CD200R1 (CD200 receptor 1) and CD200R1L (CD200 receptor 1 like). [provided by Alliance of Genome Resources, Apr 2022]