Predicted to enable G protein-coupled receptor activity. Acts upstream of or within glucose homeostasis; negative regulation of insulin receptor signaling pathway; and regulation of growth. Predicted to be located in plasma membrane. Predicted to be integral component of membrane. Is expressed in cerebral cortex and cerebral cortex marginal layer. Orthologous to human GPR21 (G protein-coupled receptor 21). [provided by Alliance of Genome Resources, Apr 2022]