RNA-binding protein which is required for syntaxin location in sensory neurons during long-term synaptic facilitation. Binds to syntaxin mRNA and is required to maintain its accumulation at the axon hillock following neuronal stimulation and at the opposite pole in stable unstimulated sensory neurons. Present in both the perikaryon and neurites of sensory neurons. In unstimulated sensory neurons, located in the region of the perikaryon opposite the axon hillock. After neuronal stimulation, expressed at highest levels at the axon hillock. Strongly expressed in nervous tissue (at protein level). Probable cloning artifact.