Enables microtubule binding activity. Involved in microtubule cytoskeleton organization. Acts upstream of or within establishment of spindle orientation; microtubule sliding; and mitotic spindle organization. Located in postsynaptic density. Is expressed in several structures, including central nervous system; genitourinary system; gut; musculature; and trunk mesenchyme. Orthologous to human MAP4 (microtubule associated protein 4). [provided by Alliance of Genome Resources, Apr 2022]