Predicted to enable several functions, including cytoskeletal protein binding activity; enzyme binding activity; and protein dimerization activity. Acts upstream of or within energy homeostasis; negative regulation of brown fat cell proliferation; and negative regulation of feeding behavior. Located in external side of plasma membrane. Is expressed in metanephros; spleen; and testis. Orthologous to several human genes including CEACAM1 (CEA cell adhesion molecule 1). [provided by Alliance of Genome Resources, Apr 2022]