Used in immunological research to study folate receptor 1 (FOLR1) expression and function in non-human primate models, particularly in vaccine development and reproductive biology. Serves as a control antigen in immunoassays and flow cytometry due to the His tag, enabling easy detection and purification. Supports studies on folate transport mechanisms and receptor-mediated drug delivery systems in preclinical testing. Also utilized in generating monoclonal antibodies that cross-react with human FOLR1 for therapeutic screening.