Enables actin binding activity. Involved in positive regulation of DNA-binding transcription factor activity and positive regulation of Rho protein signal transduction. Acts upstream of or within positive regulation of transcription by RNA polymerase II and protein import into nucleus. Located in actin cytoskeleton and myofibril. Is expressed in embryo; heart; hindlimb muscle; and skeletal muscle. Orthologous to human ABRA (actin binding Rho activating protein). [provided by Alliance of Genome Resources, Apr 2022]