Function
Inhibitor of melanocortin receptor 4 (mc4r), a receptor involved in energy homeostasis. Plays a role during larval development in the control of energy homeostasis and body weight regulation by decreasing ligand-sensitivity of mc4r and mc4r-mediated generation of cAMP, leading to stimulate growth during larval development. Acts by stabilizing an inactive conformation of mc4r during embryonic development, when all the energy consumed is obtained from the yolk sac, possibly to speed the rapid maturation to the mobile free-feeding juvenile stage reached at 5 dpf.