She was commissioned into the German Imperial Navy on 9 February 1918 as SM UB-119.

[Note 1] UB-119 was rammed and sunk in the Atlantic Ocean off Rathlin Island, County Donegal, Ireland, United Kingdom, at (55°16′N 6°24′W / 55.267°N 6.400°W / 55.267; -6.400) by the steamer Green Island with the loss of all 34 members of her crew.

UB-119 was commissioned early the next year under the command of Oblt.z.S.

Like all Type UB III submarines, UB-119 carried 10 torpedoes and was armed with a 8.8 cm (3.46 in) deck gun.

UB-119 would carry a crew of up to 3 officer and 31 men and had a cruising range of 7,280 nautical miles (13,480 km; 8,380 mi).