Predicted to enable several functions, including guanyl-nucleotide exchange factor activity; identical protein binding activity; and phosphatase binding activity. Predicted to be involved in regulation of GTPase activity. Predicted to be located in vacuolar membrane. Predicted to be active in cytoplasm and membrane. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease type 4B2. Orthologous to human SBF2 (SET binding factor 2). [provided by Alliance of Genome Resources, Apr 2022]