Enables actin binding activity; muscle alpha-actinin binding activity; and vinculin binding activity. Predicted to be involved in cardiac muscle thin filament assembly. Predicted to act upstream of or within actin cytoskeleton organization. Located in fascia adherens; muscle tendon junction; and myofibril. Is expressed in early conceptus; heart; limb musculature; oocyte; and skeletal muscle. Orthologous to human NRAP (nebulin related anchoring protein). [provided by Alliance of Genome Resources, Apr 2022]