Following shakedown training at Mine Warfare School, Yorktown, Virginia, Goldcrest arrived New York on 10 August 1942 to base at Staten Island while serving as an inshore patrol and NROTC cadet school ship under the 3rd Naval District. On 24 August, she became flagship of Division 1 of the Inshore Patrol Force. In Sandy Hook Bay, New Jersey, while on patrol 11 March 1943, she sank by gunfire three mines that had drifted from defensive minefields. On 29 March, she assisted a damaged merchantman off Staten Island. Her patrol and school ship duties continued until 5 August 1945 when she transferred to Charleston, South Carolina, for minesweeping duty.
Goldcrest was decommissioned on 12 December 1945 and was sold on 20 June 1946 to her former owner.