GPM6A (Glycoprotein M6A): GPM6A is a gene that encodes a glycoprotein mainly expressed in the nervous system. It plays a critical role in neurite outgrowth and the formation of neuronal networks, as well as in the development and maintenance of the myelin sheath, which is essential for efficient nerve signal transmission. GPM6A is linked to neurological disorders such as schizophrenia and bipolar disorder, due to its involvement in neuronal plasticity and myelination. Changes in GPM6A expression or function may affect synaptic connectivity and brain function, potentially contributing to these neuropsychiatric conditions.