Enables SNARE binding activity and small GTPase binding activity. Involved in endosome to melanosome transport; neuron projection morphogenesis; and positive regulation of dendrite morphogenesis. Located in melanosome; neuron projection; and transport vesicle. Is expressed in several structures, including genitourinary system; liver; lung; spleen; and stomach. Human ortholog(s) of this gene implicated in eosinophilic esophagitis. Orthologous to human ANKRD27 (ankyrin repeat domain 27). [provided by Alliance of Genome Resources, Apr 2022]