Based on limited published evidence, GARRE1 acts as an effector of RAC1 in small GTPase signaling 1. It associates with the CCR4-NOT complex, a major cellular mRNA deadenylase involved in bulk mRNA degradation, miRNA-mediated repression, and translational regulation 2. GARRE1 may participate in miRNA silencing machinery 2. Recent RNA-seq analysis suggests GARRE1 expression in pubertal mammary epithelial cells may provide protective effects for immune and DNA damage responses 3.