A rather flattering victory for Lancashire as Ulster completely dominated the second period after a slow start.
They found themselves trailing 26-5 at the half way stage but then started to show their skills and finished firmly encamped on the visitor's line for the last 10 minutes.
Lancashire started strongly with two tries from winger Sam Lowden both converted by out-half Eithan Allen before flanker Sam Gale ran in for their third.
Ulster were always playing 'catch up' from then on but retorted with an excellent try from winger Craig Wilson.
The Malone player showed his skills not only in attack but his defensive work was superb throughout. Before half-time Gale added a second try which was goaled to make it 26-5.
The Ulster interval talk worked wonders as they came out with more determination. They were inside their opponents '22' for some time before good forward play led to Virginia centre Don Mullan touching down close to the posts for Banbridge's McAuley Little to add the points.
Lancashire winger Tom Morgan scored against the run of play but although Ulster continued to dictate the pattern of play, they had to be satisfied with a Littlle try which he converted himself.
Manager Liam Eastwood said: “We allowed them to gain the upper hand, but we fought back gallantly which will give us some confidence before our first Inter-pro against Leinster next week.”