やくyakunitatsu
1.

To possess qualities or functions that effectively contribute to achieving a specific purpose or goal.

2.

To be capable of performing a designated role or task successfully, thereby providing value or assistance in a particular context.

3.

To demonstrate utility or practicality, resulting in a beneficial outcome when employed in a suitable situation.

4.

To meet the expectations or requirements of a given task, serving as a reliable resource or support when needed.

Example:

それ以上はお役に立てません。