Catalyzes the PLP-dependent transamination of scyllo-inosose to form scyllo-inosamine. L-glutamine + scyllo-inosose = 1-amino-1-deoxy-scyllo-inositol + 2-oxoglutaramate Antibiotic biosynthesis; streptomycin biosynthesis. Homodimer. Belongs to the DegT/DnrJ/EryC1 family. L-glutamine:2-deoxy-scyllo-inosose/scyllo-inosose aminotransferase subfamily.