Involved in sarcomere organization. Is expressed in adult head; adult heart; and adult somatic muscle cell. Used to study congenital heart disease. Human ortholog(s) of this gene implicated in intrinsic cardiomyopathy (multiple); lethal congenital contracture syndrome 4; and muscle tissue disease (multiple). Orthologous to human MYBPC1 (myosin binding protein C1); MYBPC2 (myosin binding protein C2); and MYBPC3 (myosin binding protein C3).