The production of the second messenger molecules diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) is mediated by activated phosphatidylinositol-specific phospholipase C enzymes. PLCE1 is a bifunctional enzyme which also regulates small GTPases of the Ras superfamily through its Ras guanine-exchange factor (RasGEF) activity. As an effector of heterotrimeric and small G protein, it may play a role in cell survival, cell growth, actin organization and T- cell activation. In podocytes, is involved in the regulation of lamellipodia formation. Acts downstream of AVIL to allow ARP2/3 complex assembly (PubMed:29058690). {ECO:0000269|PubMed:11022047, ECO:0000269|PubMed:11395506, ECO:0000269|PubMed:11715024, ECO:0000269|PubMed:11877431, ECO:0000269|PubMed:12721365, ECO:0000269|PubMed:16537651, ECO:0000269|PubMed:17086182, ECO:0000269|PubMed:29058690}. This is the function of Ensembl gene identifier ENSG00000138193 (PLCE1, phospholipase C epsilon 1).