Shelter then continued to Tinian for supplies and then escorted USS Guide, flagship of COMMINEPAC to Iwo Jima that arrived off the island on 16 February 1945.

Shelter had only surface radar, so incoming flights were relayed with a bearing and the estimated time until arrival from a point ashore.

She made assault sweeps at Ie Shima on 8 and 14 April, served on antisubmarine patrol, and departed on 4 May for Ulithi, thence to San Pedro Bay, Leyte, Philippine Islands.

Six days later, she sailed with a minesweeping task unit that swept the Arcadia minefields in the Yellow Sea in preparation for the landing of occupation forces on the Korean peninsula by the Ninth Fleet on 7 September 1945.

She then proceeded to the western coast of Kyushu, Japan, for minesweeping in approaches to Nagasaki and Sasebo, where Lieutenant Douglas Giddings assumed command, clearing 22 moored mines and obstructions from 9 to 16 September 1945.

Shelter departed Nagasaki on 26 September 1945 for repairs at Sasebo, then spent 11 to 17 October sweeping 83 Japanese mines in the Tsushima Strait.

She joined Mine Squadron Twelve on 27 November acting as reference ship until completion of sweeping operations in Tsushima Strait on 4 December 1945.

She departed Wakayama, Japan, for home on 11 December touching Eniwetok, Pearl Harbor, and San Diego, where LT JG Samuel F. Melcher Jr assumed command on her way to Galveston, Texas, arriving on 3 February 1946.

She was struck from the Navy List on 1 August 1963 and was transferred on loan to the government of South Vietnam on 24 January 1964, under terms of the Military Assistance Program.