Predicted to enable S-methyl-5-thioribose-1-phosphate isomerase activity and identical protein binding activity. Predicted to be involved in L-methionine salvage from methylthioadenosine. Predicted to act upstream of or within methionine biosynthetic process. Predicted to be located in cytosol; fibrillar center; and nucleoplasm. Orthologous to human MRI1 (methylthioribose-1-phosphate isomerase 1). [provided by Alliance of Genome Resources, Apr 2022]