FARP2 (FERM, ARH/RhoGEF, and Pleckstrin Domain Protein 2): FARP2 is a signaling protein that plays a crucial role in neuronal development and synaptic plasticity. It regulates dendritic spine formation and actin cytoskeleton remodeling by functioning as a guanine nucleotide exchange factor for small GTPases. Through these mechanisms, FARP2 affects neuronal connectivity and function. Alterations in FARP2 expression or activity are associated with neurological disorders, highlighting its significance in brain development and synaptic regulation.