Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in response to endoplasmic reticulum stress. Predicted to act upstream of or within long-term synaptic potentiation and regulation of NMDA receptor activity. Predicted to be located in endoplasmic reticulum. Orthologous to human RASGRF2 (Ras protein specific guanine nucleotide releasing factor 2). [provided by Alliance of Genome Resources, Apr 2022]