BET1L (Bet1 Golgi Vesicular Membrane Trafficking Protein-Like): BET1L is a protein that plays a crucial role in the vesicular transport system, specifically managing the trafficking between the endoplasmic reticulum and the Golgi apparatus. This process is essential for the correct secretion and processing of proteins, supporting important cellular functions such as cell signalling, metabolism, and structural maintenance. BET1L’s function in this transport pathway is vital for normal cellular operations and maintaining cellular homeostasis.