Cursed Totem

• WWizards of the Coast2016-06-08
  Official Ruling
  Activated abilities contain a colon. They're generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.
• WWizards of the Coast2021-06-18
  Official Ruling
  Cursed Totem doesn't stop players from activating abilities of creature cards that aren't on the battlefield, such as cycling or unearth.
• WWizards of the Coast2021-06-18
  Official Ruling
  Other abilities of creatures, including static abilities and triggered abilities, are unaffected.
• WWizards of the Coast2021-06-18
  Official Ruling
  Cursed Totem stops players from activating mana abilities of creatures.
• WWizards of the Coast2021-06-18
  Official Ruling
  Activated abilities of noncreature permanents that would make them become creatures (such as a Vehicle's crew ability) can still be activated. Once they become creatures, any abilities they have cannot be activated.

Rulings via Scryfall