Predicted to enable actin binding activity. Predicted to be involved in positive regulation of actin filament bundle assembly. Located in Z disc. Is expressed in adult head; adult heart; larval muscle system; larval somatic muscle cell; and spermatozoon. Orthologous to human SYNPO (synaptopodin); SYNPO2 (synaptopodin 2); and SYNPO2L (synaptopodin 2 like).