Predicted to enable actin binding activity. Involved in several processes, including positive regulation of Rho protein signal transduction; positive regulation of stress fiber assembly; and sarcomere organization. Located in Z disc and nucleus. Is expressed in several structures, including diaphragm; heart; limb mesenchyme; myotome; and skeletal musculature. Orthologous to human SYNPO2L (synaptopodin 2 like). [provided by Alliance of Genome Resources, Apr 2022]