Young has joined Villa as a free agent from Inter Milan.
Davies told BirminghamLive: “He's a brilliant signing for Villa, for his winning mentality and his experience, there's plenty that he can bring.
“We played in a team that finished in the top six all the time, three years in a row and that's the mentality you need, getting over the line in certain games and finishing in the top six is the sort of stuff that can rub off for sure.
“For long periods of the season last year Villa looked like they were good for a European finish and it didn't look like they were going to let it up until Jack got his injury and things turned.
“I think from that side of things, if Ash can help the club make that next step and jump into Europe, his experience could be vital to the team."