Ennis was 6 of 9 from the field, including 5 of 8 from 3-point range, and matched his team-leading scoring average. Jennings pulled down seven rebounds for the 49ers (11-8, 7-1 Big West), who shot 57 percent from the floor and 58 percent from beyond the arc.
Irvine stayed close throughout the first half and trailed just 37-35 after Alex Young's 3-pointer a minute after halftime. But the Anteaters ran out of gas later in the second half, and Long Beach State's 15-3 run turned a 59-52 lead into 74-55.
Long Beach State has won its last five meetings with UC Irvine.