Help with Private Pension and Universal Credit

[Brianstorm]

Hi i am on UC at the minute, i have just turned 55 and i have a private pension from a job from the 90s, i did not pay anything into it myself, it was all paid for by the company i worked for. Anyway it is not worth that much, a cash lump sum of just over £2000 plus £487 per year paid monthly at £40.64 a month. I have had a quick look but i cannot find out exactly if i have to inform the folks at UC and if i do will the pension money i receive if i cash it in make a difference to the UC i get.
It is no big deal, i am not trying to get out of anything i just want to know for sure and thought i would ask on here, thanks.