May be involved in the trafficking and dendritic transport of signaling proteins, such as the receptor-type guanylate cyclases gcy-12 and daf-11, to the cilia. In ciliated sensory neurons, required for the calcium flux to the cytoplasm in response to onset and removal of a nitric oxide (NO) stimulus and is thereby required for the behavioral avoidance response to NO-producing organisms like P.aeruginosa (PubMed:30014846). Expressed in many ciliated sensory neurons. Fails to localize guanylate cyclase gcy-12 to sensory cilia.