Predicted to enable identical protein binding activity; melanocortin receptor binding activity; and signaling receptor regulator activity. Predicted to be involved in negative regulation of protein localization to plasma membrane; protein localization to plasma membrane; and regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway. Predicted to act upstream of or within brown fat cell differentiation. Predicted to be located in intracellular membrane-bounded organelle. Predicted to be active in endoplasmic reticulum and plasma membrane. Human ortholog(s) of this gene implicated in familial glucocorticoid deficiency. Orthologous to human MRAP (melanocortin 2 receptor accessory protein). [provided by Alliance of Genome Resources, Apr 2022]