Enables hormone binding activity and melanocortin receptor activity. Involved in positive regulation of feeding behavior. Predicted to be located in plasma membrane. Human ortholog(s) of this gene implicated in familial melanoma; major depressive disorder; melanoma; oculocutaneous albinism type II; and pigmentation disease. Orthologous to human MC1R (melanocortin 1 receptor). [provided by Alliance of Genome Resources, Apr 2022]