Acts upstream of or within enteric nervous system development; microtubule cytoskeleton organization; and plasma membrane bounded cell projection organization. Predicted to be located in mitochondrion. Is expressed in gut and nervous system. Used to study Goldberg-Shprintzen syndrome. Human ortholog(s) of this gene implicated in Goldberg-Shprintzen syndrome. Orthologous to human KIFBP (kinesin family binding protein).