[3] Operating under the aegis of Service Squadron 9 through the end of the war with Japan, the vessel carried cargo between Manus, in the Admiralty Islands, and Philippine ports.

After supporting the occupation of Japan through the autumn, Antrim departed the Western Pacific on 4 January 1946 and proceeded singly to the Panama Canal Zone, reaching Cristobal on 20 February.

[3] Delivered to the War Shipping Administration (WSA) three days later, Antrim's name was struck from the Navy list on 17 April 1946.

Records indicate that the ship briefly operated under the United States flag, with the firm of Dichmann, Wright & Pugh, Inc. of San Francisco, California, in 1947, before being transferred to Turkish registry the following year.

Renamed Kars and homeported at Istanbul, Turkey, the erstwhile Navy cargo ship operated under the Turkish flag into the 1980s.