Walter was activated from the reserve/COVID-19 list Monday.
Walter has been residing on the reserve list since Dec. 17, but he'll now have an opportunity to rejoin the 49ers' running back stable heading into a Week 17 matchup against Seattle. The 24-year-old has fulfilled most of his duties on special teams this season, fielding 33 of his 45 total snaps in that department over three game appearances.