1st commission

Completing shakedown in March 1945 at the Amphibious Training Base, Panama City, Florida, Minotaur returned to Mobile to load steelplate and marine engines before departing for the Pacific. Steaming via the Marshall and Caroline Island groups, she anchored Buckner Bay, Okinawa on 4 June 1945. Having arrived during the final stage in the capture of this Japanese bastion, she remained at Okinawa through the end of the War and until 12 December 1945, when she sailed her landing craft repair facilities to Iwo Jima. Making two voyages to Chichi Jima, Bonin Islands, she served in the area a month and a half before heading home. Transiting the Panama Canal 10 April 1946, Minotaur entered the Mississippi River eight days later and moored in New Orleans. In June 1946, Minotaur arrived at Orange, Texas and joined the 16th Fleet. She decommissioned 26 February 1947.

2nd commission

During the Korean War, Minotaur recommissioned 14 June 1951. Assigned to Mine Squadron 8 and home ported at Charleston, South Carolina, for the next four years she repaired minesweepers and net layers. She made working visits to Panama City and Yorktown, Virginia and maintained sea readiness during training periods in the Chesapeake Bay operating area. Minotaur departed coastal waters only once for a short Caribbean tour early in 1953 before being made available for foreign duty under the Military Assistance Program two years later.

At New York 3 October 1955 Minotaur decommissioned and was loaned to the Republic of Korea, where she served the Republic of Korea Navy as ROKS Duk Soo (ARL 1).

Minotaur received one battle star for World War II service.