Ranatensin is primarily used in research settings to study its effects on smooth muscle contraction and cardiovascular functions. It has been found to influence blood pressure and heart rate, making it a valuable tool in physiological studies. Additionally, ranatensin is utilized in neurobiological research to explore its role in neurotransmission and its interaction with specific receptors in the nervous system. Its applications also extend to pharmacological studies, where it helps in understanding the mechanisms of peptide hormones and their potential therapeutic uses.