Predicted to enable neurokinin receptor binding activity and receptor ligand activity. Acts upstream of or within several processes, including cellular response to nerve growth factor stimulus; response to pain; and sensory perception of pain. Located in axon; extracellular region; and neuronal cell body. Is expressed in several structures, including alimentary system; integumental system; limb; nervous system; and sensory organ. Orthologous to human TAC1 (tachykinin precursor 1). [provided by Alliance of Genome Resources, Apr 2022]