SLC6A15 is a gene that encodes a protein responsible for transporting certain amino acids, particularly serine, across cell membranes. This protein plays a crucial role in the brain, influencing neurotransmitter signaling and overall neuronal function. Research has shown that variations in the SLC6A15 gene may be linked to mental health conditions, such as depression and schizophrenia. Understanding this gene's function can help scientists develop new treatments and interventions for these disorders, highlighting its importance in both genetics and neuroscience.