Adaptive Search Query : MemberFunctionCode

Is there a way on adaptive search query to show the MemberFunctionCode of the Team Members? I don't see it on the fields available for Team Members. We need this to distinguish which is the owner or not. Is there another way to distinguish which is the owner or not aside from MemberFunctionCode from this child object?

URL: {{envi}}/crmRestApi/searchResources/latest/custom-actions/queries?

Method: POST

Body:

{
"entity": "Account",
"limit": 100,
"offset": 0,
"sort": [
{
"attribute": "PartyNumber",
"direction": "ascending"
}
],
"onlyData": "true",
"fields": [
"PartyNumber",
"ListOfResourcesForTheTeam"
],
"q": {
"op": "$and",
"criteria": [
{
"op": "$eq",
"attribute": "PartyNumber",
"value": "1234"
}
]
}
}