Enables neuropilin binding activity. Involved in neuron projection morphogenesis; positive regulation of JNK cascade; and regulation of actin cytoskeleton organization. Located in axonal growth cone and dendritic growth cone. Colocalizes with actin cytoskeleton. Is expressed in central nervous system and retina. Orthologous to human TAOK2 (TAO kinase 2). [provided by Alliance of Genome Resources, Apr 2022]