Thiosulfate sulfurtransferase (TST)

Formation of iron-sulfur complexes, cyanide detoxification or modification of sulfur-containing enzymes. Other thiol compounds, besides cyanide, can behave as sulfur ion acceptors.

Also has weak mercaptopyruvate sulfurtransferase (MST) activity (By similarity). Together with MRPL18, functions as a mitochondrial import factor for the cytosolic 5S rRNA.