Enables actin binding activity and alpha-actinin binding activity. Acts upstream of or within cardiac muscle cell development. Located in several cellular components, including cytoskeleton; mitochondrion; and sarcomere. Is expressed in heart and male reproductive gland or organ. Used to study dilated cardiomyopathy. Orthologous to human LRRC10 (leucine rich repeat containing 10). [provided by Alliance of Genome Resources, Apr 2022]