Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity and small GTPase mediated signal transduction. Predicted to act upstream of or within cerebellar granule cell differentiation; positive regulation of protein phosphorylation; and regulation of dendrite morphogenesis. Predicted to be located in dendrite and neuronal cell body. Predicted to be part of guanyl-nucleotide exchange factor complex. Orthologous to human KNDC1 (kinase non-catalytic C-lobe domain containing 1). [provided by Alliance of Genome Resources, Apr 2022]