Glutamic acid dehydrogenase is widely used in biochemical research and diagnostic applications. It plays a crucial role in enzymatic assays, particularly in the measurement of ammonia levels in biological samples. The enzyme is employed in clinical diagnostics to assess liver function and detect metabolic disorders, as it catalyzes the conversion of glutamate to α-ketoglutarate, releasing ammonia in the process. Additionally, it is utilized in the food industry for the production of flavor enhancers and in biotechnological processes for the synthesis of amino acids. Its specificity and efficiency make it a valuable tool in both industrial and laboratory settings.