Williamson joined Wolves from Newcastle United during the January transfer window, but he has been unable to make an appearance since signing permanently due to injury.
However, the 32-year-old is now close to making it off the treatment table, and Jackett feels that his experience could help his young side.
“I do feel you do need one or two older players and experienced players, and Williamson comes into that category,” Jackett said.
“Certainly in that position he can manage games, help you get over the line and be thinking on his feet during games rather than assessing it afterwards.
“He’s calm on the ball and quite often in terms of starting attacking we’ve been hasty from the back and I want to continue to improve our possession play and our distribution from defensive positions.”
Williamson’s last match came back in November, but he is expected to return to training this week.
The veteran defender is the oldest member of Wolves’ squad, and his importance to the team has already been highlighted while on a loan spell.
Wolves had one of their best runs of defensive form while Williamson was in their line-up earlier in the campaign, and they only conceded three goals in the five matches he played on his temporary spell.
Since Williamson’s departure, Wolves’ defence has started to leak goals again, but Jackett will be hoping that adding some more knowhow will tighten things up again.
Wolves’ next match comes against Huddersfield Town on Saturday.