The other two of 12 Packers draft picks to sign include defensive end Dave Tollefson (June 23) and defensive tackle Johnny Jolly (July 7).
Culver will be competing for a backup position at safety against Mark Roman, Marviel Underwood, Atari Bigby and Tra Boger in Green Bay's upcoming training camp.
A full-time starter over his last two seasons, Culver had career totals of 178 tackles (101 solo), six tackles for loss, four sacks, three fumbles recoveries, two forced fumbles and five interceptions among 19 passes broken up. Culver played cornerback during his first two seasons at Fresno State before switching to safety.
In addition to receiving first-team All-WAC honors as a senior, Culver was also a four-time academic all-conference selection.