Erzya Linguist is a GPT that specializes in translating between Russian and Erzya. Its use of Erzya rules enables it to perform translations to and from the Erzya language, a notable member of the Uralic language family, primarily spoken by the Erzya people in the central and northeastern parts of the republic of Mordovia in Russia. Developed by Georgii Burdin, this GPT utilizes the machine learning model of ChatGPT, repurposed for understanding and processing Erzya, a less-documented and lower-resourced language. This makes it a useful tool for linguists, researchers, and anyone interested in the Erzya language and culture. Upon interaction, the GPT provides prompt starters such as 'Translate to Erzya:', 'Translate to Russian:', 'What's the Erzya word for:', and 'How do you say in Russian:', guiding users to make suitable queries for accurate translations. It is important to note that the usage of this tool requires ChatGPT Plus, indicating that additional features or capabilities may be available for users with ChatGPT Plus subscriptions. The Erzya Linguist offers a unique opportunity to interact with, and learn about, a relatively less-known language through the power of AI, contributing to the global promotion and preservation of linguistic diversity.