An S subtype restriction enzyme that recognizes the double-stranded sequences 5'-GGTGA-3' and 5'-TCACC-3' and cleaves respectively 13 bases after G-1 and 7 bases before T-1, leaving a single 3' protruding nucleotide. Endonucleolytic cleavage of DNA to give specific double-stranded fragments with terminal 5'-phosphates.