Predicted to enable ATP binding activity; microfilament motor activity; and myosin binding activity. Acts upstream of or within several processes, including actin-mediated cell contraction; cardiac muscle tissue morphogenesis; and myofibril assembly. Located in I band. Is active in glutamatergic synapse. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; musculature; and sensory organ. Used to study dilated cardiomyopathy 1R. Human ortholog(s) of this gene implicated in atrial heart septal defect 5; dilated cardiomyopathy; dilated cardiomyopathy 1R; and hypertrophic cardiomyopathy 11. Orthologous to human ACTC1 (actin alpha cardiac muscle 1). [provided by Alliance of Genome Resources, Apr 2022]