Culliver was arrested on March 28 after San Jose police say he struck a bicyclist, then rammed a witness' vehicle that was blocking him from leaving until officers arrived. The San Jose Mercury News reports (http://bit.ly/1hBHB6y) that he entered his plea on Friday in Santa Clara County Superior Court.
In 2013, Culliver created controversy by expressing anti-gay sentiments in the lead-up to the Super Bowl. He has since undergone sensitivity training and done outreach work with an organization that supports lesbian, gay, bisexual and transgender youth.
His case is among a string of recent legal problems for 49ers players, including the arrest Sunday of linebacker Aldon Smith.