Predicted to enable guanyl-nucleotide exchange factor activity and small GTPase binding activity. Involved in negative regulation of neuron projection development. Predicted to be located in trans-Golgi network. Predicted to be part of retromer complex. Human ortholog(s) of this gene implicated in developmental and epileptic encephalopathy 49. Orthologous to human DENND5A (DENN domain containing 5A). [provided by Alliance of Genome Resources, Apr 2022]