Predicted to enable actin filament binding activity. Acts upstream of or within posterior lateral line neuromast primordium migration. Predicted to be located in several cellular components, including growth cone; lamellipodium; and perikaryon. Predicted to be part of microtubule associated complex. Predicted to be active in axonal growth cone; cell leading edge; and cytoplasm. Is expressed in nervous system and optic vesicle. Orthologous to human SHTN1 (shootin 1).