Enables muscle alpha-actinin binding activity and protein kinase C binding activity. Acts upstream of or within sarcomere organization. Located in Z disc. Is expressed in several structures, including central nervous system; heart; lower urinary tract; musculature; and sensory organ. Used to study congenital myopathy; dilated cardiomyopathy 1C; and myofibrillar myopathy 1. Human ortholog(s) of this gene implicated in dilated cardiomyopathy; dilated cardiomyopathy 1C; distal myopathy; and myofibrillar myopathy 4. Orthologous to human LDB3 (LIM domain binding 3). [provided by Alliance of Genome Resources, Apr 2022]