Enables scaffold protein binding activity. Involved in several processes, including axonal transport; cellular response to ethanol; and forebrain development. Located in several cellular components, including P-body; central region of growth cone; and perikaryon. Part of kinesin complex. Human ortholog(s) of this gene implicated in amyotrophic lateral sclerosis; hereditary spastic paraplegia 10; multiple sclerosis; prostate cancer; and rheumatoid arthritis. Orthologous to human KIF5A (kinesin family member 5A). [provided by Alliance of Genome Resources, Apr 2022]