Benenoch announced his plans in a post on his Twitter account Thursday.
The 6-foot-5 Texas native has started 35 consecutive games in three seasons with the Bruins, including every game in the past two years.
He moved between right guard and right tackle this season, providing stability for the injury-plagued UCLA lineup.
Benenoch joins four Bruins who have already announced plans to head to the NFL. They include offensive guard Alex Redmond, who skipped the Foster Farms Bowl last week and signed with an agent.
UCLA (8-5) lost three of its last four games.