Commissioned on December 13, 1943, at Montreal, she arrived at Halifax on December 20 and in January, 1944, was sent to Bermuda to work up. On her return in February she was based for a short time at Halifax, but in April joined EG 9 in Londonderry. She was present on D-Day. On September 1, 1944, she and Swansea sank U 247 off Land's End, and on February 16, 1945, Saint John destroyed U 309 in Moray Firth. In December 1944, she escorted convoys JW.62 and RA.62 on the North Russia run, to and from Kola Inlet. She arrived at Cardiff for repairs on February 27, 1945, and, when these were completed in April, proceeded home for tropicalization refit at Saint John, from May to October. She was paid off November 27, 1945, at Halifax and placed in reserve in Bedford Basin until sold in 1947 for scrapping at Sydney.