Predicted to enable cAMP binding activity and structural molecule activity. Involved in heart development and skeletal muscle tissue development. Acts upstream of or within several processes, including bicellular tight junction assembly; eye morphogenesis; and heart morphogenesis. Located in sarcolemma. Is expressed in several structures, including EVL; cardiovascular system; eye; integument; and optic vesicle. Used to study tetralogy of Fallot. Human ortholog(s) of this gene implicated in autosomal recessive limb-girdle muscular dystrophy type 2X. Orthologous to human POPDC1 (popeye domain cAMP effector 1).