Boyd wrote in
:
http://www.filmcentre.co.uk/boyd/ft/dv3/dv3.htm
"Warships of World War II" (by Lenton & Colledge, ISBN 0 7110 0403 X) lists
it on page 451 as:
Isles class Naval Trawler, with few details other than those you know;
became a Tank Cleaning Vessel from 1950