SORCS3 (Sortilin-Related VPS10 Domain Containing Receptor 3) is a protein belonging to the VPS10 domain-containing receptor family, involved in protein trafficking and sorting within cells. It plays a crucial role in the nervous system by regulating the movement of proteins essential for synaptic function. Alterations in SORCS3 activity have been linked to neurological disorders such as Alzheimer's disease and schizophrenia.