Enables alpha-tubulin binding activity. Involved in negative regulation of axon extension and positive regulation of peptidyl-lysine acetylation. Located in axon; dendrite; and perikaryon. Is expressed in several structures, including central nervous system; liver; retina; spleen; and stomach. Orthologous to human DIP2B (disco interacting protein 2 homolog B). [provided by Alliance of Genome Resources, Apr 2022]